Improvement in window-slat fasteners



UNITED STATES PATENT Orman..

SELF AND CHARLES H. HURD, OFNEV ROCHELLE, NEW YORK.

IMPROVEMENT IN WINDOW-SLAT FASTENERS.

Specification forming part of Letters Patent No. 40,304, dated October 13, 1863.

To all whom it may concern Be it known that LWILLIAM H. ANDREWS, of New Haven, in the county of New Haven and State of Connecticut, have invented a certain new and useful Improvement in Vindow-Slat Fasteners and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making a parto` this speciiication.

My invention is designed to obviate the difficulty heretofore experienced in securing the slats of window-blinds in the position required, and is intended to provide a fastening at once cheap and reliable.

The leading feature of the invention consists in secnrin g a spring or catch to the frame of the blind in such a manner as to hold the slats in place, and also prevent their being opened from the outside.

Figure l is a side elevation of the blind in a closed position with the spring or catch attached. Fig. 2 is a vertical transverse sec tion showing the blind in an open position, and also showing the spring or catch holding the slats open.

A is the frame-work of the blind. B B are the slats. C is the connectionrod ofthe slats. D is the spring or catch.

It will be observed that the spring or catch D is slightly bent or curved just above the screws, (which secure it to the frame A,) which bend or curve gives it spring enough to hold the slats in any position required. When the slats are closed, as seen in Fig. l, the spring or catch D springs back over the edge of the lowest slat, B, so as to hold them all closed. When wishing to open the slats, press the spring or catch .D back with the thumb and turn the slats B B by the connection-rod C with the other hand. The spring or catch D is made by rst stamping it out into the proper size and form, and then be pressing and bending it to give it the required curve for the spring.

Having thus fully described my said invention, what I claim, and desire to secure by Letters Patent in the United States, is-

The spring or catch D, secured to the frame A, in combination with the slats B B, as hereinbefore set forth.

NVitnesses WM. H. ANDREWS.

JOHN S. FOWLER, CHARLES Ivns. 

